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    • 18. 发明申请
    • NUCLEIC ACID DETECTION DEVICE
    • 核酸检测装置
    • US20070227885A1
    • 2007-10-04
    • US11682484
    • 2007-03-06
    • Jun OkadaSadato HongoNobuhiro Gemma
    • Jun OkadaSadato HongoNobuhiro Gemma
    • G01N33/487
    • B01L3/5027B01L2300/0636B01L2300/0645B01L2300/0883G01N27/3275
    • A nucleic acid detection device includes a flow channel through which a solution containing a nucleic acid recognition body flows, probe electrodes having immobilized nucleic acid probes, and a counter electrode used to measure an electrochemical response of the nucleic acid recognition body. The flow channel includes a curved portion and a straight portion continued from and located downstream of the curved portion. The probe electrodes are arranged at intervals along the straight portion, avoiding an upstream end of the straight portion that is located within a distance L from the curved portion. The distance L is given by L=0.065×Re×D, Re=ρuD/μ, and D=4 S/Lp where ρ, u, and μ are a concentration, a flow velocity, and a viscosity of the solution, and S and Lp are a sectional area and a wall peripheral perimeter of the flow channel, respectively.
    • 核酸检测装置包括含有核酸识别体的溶液流过的流路,具有固定化的核酸探针的探针电极和用于测定核酸识别体的电化学响应的对极。 流动通道包括弯曲部分和从弯曲部分连续并位于弯曲部分下游的直线部分。 探针电极沿着直线部分间隔设置,避免了直线部分的距弯曲部分的距离L内的上游端。 距离L由L = 0.065xRexD,Re = rhouD / mu和D = 4S / Lp给出,其中rho,u和μ是溶液的浓度,流速和粘度,S和Lp 分别是流动通道的截面积和壁周边周长。